Because you might have just done something different with the experiment and messed up someway during the test
Unbalanced,
Na + Cl2
Na = 1
Cl = 2
NaCl
Na = 1
Cl = 1
Basically, both the reactants and products must have equal amounts of each element.
Answer:
licking soggy toes lolllll
A) unproductive wastelands I believe is the answer you are looking for.